Liquid crystal display device

Abstract

A liquid crystal display device having an outer shape of a display region formed other than a rectangle. A driver for supplying a video signal is disposed outside the display region. A selector with selector TFT is disposed between the display region and the driver. A video signal line is disposed between the driver and the selector, and a drain line is disposed between the selector and the display region. A scanning circuit for supplying a scanning signal to the scanning line is disposed outside the display region. The selector is disposed between the scanning line and the display region, and covered with ITO as the common electrode. The common bus wiring is disposed outside the selector.

What is claimed is: 
     
       1. A display device comprising:
 a substrate having a display region having a non-rectangle outer shape and a peripheral region; 
 a scanning line extending in a first direction in the display region, 
 a scanning circuit connected to the scanning line; 
 a drain line extending in a second direction crossing the first direction in the display region; 
 a transistor disposed at the non-rectangle outer shape and connected to the drain line; 
 a video signal lead-out line connected to the transistor; and 
 a transistor control line connected to the transistor, wherein 
 the transistor control line is disposed along the non-rectangle outer shape of the display region, 
 the transistor, and the transistor control line are disposed between the display region and the video signal lead-out line, 
 the scanning line crosses the transistor control line and the video signal lead-out line in a plan view, and 
 the scanning line has a portion which extends in the second direction between the display region and the transistor control line. 
 
     
     
       2. The display device according to  claim 1 , wherein
 the transistor control line extends in the first direction and bend to the second direction along the outer shape of the display region. 
 
     
     
       3. The display device according to  claim 1 , wherein
 the transistor control line is disposed on a first layer, 
 the video signal lead-out line includes a first portion which is disposed on the first layer, and a second portion which crosses the transistor control lines and is disposed on a second layer which is different from the first layer. 
 
     
     
       4. The display device according to  claim 3 , wherein
 the portion of the scanning line is disposed on the first layer, and 
 the scanning line other than the portion of the scanning line is disposed on the second layer. 
 
     
     
       5. The display device according to  claim 3 , wherein
 the transistor has a gate electrode which is connected to the transistor control line, and the gate electrode is disposed on the second layer. 
 
     
     
       6. The display device according to  claim 3 , wherein
 the drain line is disposed on the first layer. 
 
     
     
       7. The display device according to  claim 3 , further comprising an insulation layer disposed between the first layer and the second layer,
 wherein the second layer is disposed between the insulation layer and the substrate. 
 
     
     
       8. The display device according to  claim 1  wherein
 the video signal lead-out line is connected to a driver IC, 
 the outer shape of the display region is formed by combining a linear part and a curved part; 
 the driver IC is disposed corresponding to the linear part, and 
 the scanning circuit is disposed corresponding the curved part. 
 
     
     
       9. The display device according to  claim 1  wherein
 the portion of the scanning line does not cross the transistor control line and the video signal lead-out line in a plan view. 
 
     
     
       10. The display device according to  claim 1  wherein
 the portion of the scanning line is disposed between the transistor and the transistor control line.